30011144 has 32 divisors (see below), whose sum is σ = 58912920. Its totient is φ = 14317056.

The previous prime is 30011141. The next prime is 30011147. The reversal of 30011144 is 44111003.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30011141) and next prime (30011147).

It can be written as a sum of positive squares in 4 ways, for example, as 29268100 + 743044 = 5410^2 + 862^2 .

It is not an unprimeable number, because it can be changed into a prime (30011141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14732 + ... + 16644.

Almost surely, 2^30011144 is an apocalyptic number.

It is an amenable number.

30011144 is a deficient number, since it is larger than the sum of its proper divisors (28901776).

30011144 is a wasteful number, since it uses less digits than its factorization.

30011144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 30011144 is about 5478.2427839591. The cubic root of 30011144 is about 310.7617202758.

Adding to 30011144 its reverse (44111003), we get a palindrome (74122147).

The spelling of 30011144 in words is "thirty million, eleven thousand, one hundred forty-four".